CN201218347Y - Ultrahigh pressure cut-off valve for pressure regulator - Google Patents
Ultrahigh pressure cut-off valve for pressure regulator Download PDFInfo
- Publication number
- CN201218347Y CN201218347Y CNU2008200887053U CN200820088705U CN201218347Y CN 201218347 Y CN201218347 Y CN 201218347Y CN U2008200887053 U CNU2008200887053 U CN U2008200887053U CN 200820088705 U CN200820088705 U CN 200820088705U CN 201218347 Y CN201218347 Y CN 201218347Y
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- CN
- China
- Prior art keywords
- pressure
- cut
- diaphragm
- valve
- diaphragm seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 210000004894 snout Anatomy 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000008676 import Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses an ultrahigh pressure trip valve for pressure regulator mainly has the case that cuts off of arranging valve body import intracavity area cut off spring in, the diaphragm subassembly that comprises diaphragm and diaphragm seat, pressure adjustment mechanism, and the pull rod that links to each other with the case that cuts off, steel ball etc. constitute, and the pull rod passes diaphragm seat and pressure adjustment mechanism respectively. When the pressure regulator works, when the fluid pressure in the pressure regulator exceeds a certain set pressure, a rightward thrust is generated on the left side of the die piece assembly under the action of the sensing part die piece, the spring on the right side of the die piece assembly is compressed, the diaphragm assembly moves rightwards, and therefore the pull rod is separated from the locking action of the steel ball, the cutting valve core is driven to move leftwards under the action of the cutting spring force, and the valve port is closed.
Description
Technical field
The utility model relates to the cut-off valve that a kind of pressure governor ultrahigh pressure cuts off fluid, belongs to hydrodynamic pressure automatic control technology field.
Background technique
The ultrahigh pressure cut-off valve is meant a kind of valve that controlled pressure can cut off the sprue inlet fluid when surpassing a certain setting range automatically; existing pressure governor does not generally have tripping protection; in easily generation accident of some specific occasions, as the occasion of combustion gas pressure regulation occasion or downstream connection high precision apparatus.The pressure governor that the band tripping protection is also arranged at present, but because non-being totally independent of outside the pressure governor structure, whether the existence of ultrahigh pressure tripping protection can not be carried out is freely selected, and has influenced the using scope of pressure governor.
The model utility content
The utility model is a regulator ultrahigh pressure cut-off valve, comprise the cut-out spool that places band cut-out spring in the pressure governor air inlet oral cavity, with cut off the valve port pad that spool is complementary, place the matrix assembly that constitutes by diaphragm and diaphragm seat in the valve body, place the high-pressure regulation mechanism of diaphragm seat one end, place the diaphragm seat the other end and cut off the pull bar that spool links to each other, place the steel ball in the diaphragm seat, pull bar passes diaphragm seat and pressure regulating mechanism respectively.During work, when the hydrodynamic pressure in the pressure governor surpasses certain setting pressure, effect by induction part matrix, the left side at the matrix assembly produces a thrust to the right, the spring on compression mould chip module the right moves right diaphragm unit, thereby makes pull bar break away from the lock function of steel ball, under the effect of cutting off spring force, drive the cut-out spool and be moved to the left close port.
Described pressure regulating mechanism can be set screw, pressure setting spring and be cut off spring and constitute by band pressure.
Described pull bar middle part also can be provided with groove, and left end is equipped with the cut-out spool, also can be provided with spacious mouthful of left side in the described diaphragm seat.
The utility model is reasonable in design; compact structure; can surpass a certain setting range upper limit in the controlled pressure of regulator inner fluid or be lower than the inlet fluid of cutting off the pressure governor sprue under a certain setting range in limited time automatically; it is higher that it cuts off precision; general error is no more than ± and 5%; the utility model is totally independent of outside the pressure governor structure; can whether select existence of the present utility model arbitrarily to the needs of excess pressure cutout protection according to pressure governor, can be widely used in combustion gas adjusting and hydraulic pressure or pneumatic control field.
Description of drawings
Fig. 1 is an overall structure sectional view of the present utility model.
Shown in the figure: the 1-valve port, the 2-snout cavity, 3-cuts off spool, 4-cuts off spring, 5-separation sleeve, 6-pull bar, 6a-groove 7-signal pressure chamber, 8-diaphragm, 9-steel ball, screw prevents dust for spacious mouthful of 9a-left side, 10-pressure setting spring, 11-, 12-pressure is set screw, the 13-handle, 14-valve body, 15-diaphragm seat
Embodiment
Below in conjunction with example the utility model is further described:
The utility model is mainly by valve port 1, snout cavity 2, place the cut-out spool 3 of band cut-out spring 4 in the snout cavity 2, place the diaphragm unit that constitutes by diaphragm 8 and diaphragm seat 15 in the valve body 14, place the pressure regulating mechanism of diaphragm seat 15 1 ends, place diaphragm seat 15 the other ends and cut off the pull bar 6 that spool 3 links to each other, place steel ball 9 formations such as grade in the diaphragm seat 15.Top, valve body 14 right side is provided with dustproof screw 11, and pull bar 6 passes diaphragm seat 15 and pressure regulating mechanism respectively until top, valve body right side, and pull bar 6 middle parts are provided with groove 6a, and steel ball 9 keeps separation sleeve 5 to support by steel ball.Described pressure regulating mechanism is set screw 12 by pressure setting spring 10 and pressure and is constituted.
Diaphragm unit is formed by connecting by diaphragm 8 and diaphragm seat 15, and its connection is firmly and seals.Diaphragm 8 is installed in the also sealing between the separation sleeve 5 diaphragm seats 15, and the left side of diaphragm 8 is signal pressure chamber 7,
Claims (4)
1, a kind of pressure governor ultrahigh pressure cut-off valve, it is characterized in that comprising the cut-out spool (3) that places band cut-out spring (4) in the valve body snout cavity (2), place the interior high low pressure pressure-regulating device of valve body by diaphragm (8) and diaphragm seat (15) one ends, place diaphragm seat (15) the other end and cut off the pull bar (6) that spool (3) links to each other, place the steel ball (9) in the diaphragm seat (15), pull bar (6) passes diaphragm seat (15) and high low pressure pressure-regulating device respectively.
2,, it is characterized in that described pressure pressure-regulating device can and cut off spool by band pressure setting screw (12), pressure setting spring (10) and constitute by the described pressure governor of claim 1 ultrahigh pressure cut-off valve.
3, by claim 1 or 2 described pressure governor ultrahigh pressure cut-off valves, it is characterized in that described pull bar (6) middle part also can be provided with groove (6a), left end is equipped with the cut-out spool.
4. by claim 1 or 2 described pressure governor ultrahigh pressure cut-off valves, it is characterized in that also can being provided with in the described diaphragm seat (15) left side spacious mouthful (9a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200887053U CN201218347Y (en) | 2008-06-17 | 2008-06-17 | Ultrahigh pressure cut-off valve for pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200887053U CN201218347Y (en) | 2008-06-17 | 2008-06-17 | Ultrahigh pressure cut-off valve for pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218347Y true CN201218347Y (en) | 2009-04-08 |
Family
ID=40541182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200887053U Expired - Fee Related CN201218347Y (en) | 2008-06-17 | 2008-06-17 | Ultrahigh pressure cut-off valve for pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218347Y (en) |
-
2008
- 2008-06-17 CN CNU2008200887053U patent/CN201218347Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 |